Sash-fastener



(No Model.)

B. T. PRINDLE.

SASH FASTENER.

No. 324,883. Patented Aug. 25, 1885.

FIG.5.

M Q L! n W \A/ITNESIISIEJSJ: INVENTOR: @g/fi M ZM I M FFIGES EDW ARD T. PRINDLE, OF AURORA, ILLINOIS.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 324,883, dated August 25, 1885. Application filed November 13, 1884. (No model.)

To all whom it may concern:

Be it known that I, EDWARD T. PRINDLE, of Aurora, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Sash-Locks; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to. which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention relates to a special construction of locks for window-sashes, the particulars of which will readily appear from the following:

Figure 1 is a plan of the interior of the lock, the cover being removed, the keeper being in section and locked; Fig. 2, a plan or top view of the lock and keeper when the two are not locked together; Fig. 3, a side view of the keeper. Fig. 4. is an interiorview, Fig. 5 a plan, and Fig. 6 a side view, of a modification, showing the same general construction and working upon the same principle as in Figs. 1, 2, 3, the movable piece which actuates the bolts being made to slide instead of to turn.

The invention consists, mainly, in a sashlock having one or more pivoted and toothed lever-latches actuated by means of a movable piece gearing directly therewith, such movable piece being either in the form of a worm or of a toothed slide, all as hereinafter set forth.

A is the case, and B the keeper. The case is made in two parts, 0 and d, one of which has two pins, 6, serving, respectively, as pivots or journals for the levcrlatches ff, each of which has an are, 9, of gear-teeth at one extremity, its other extremity being such that upon turning the lever on its pivot c it will either be forced outward beyond the case to enter the bolt holes It in the keeper, or be entirely withdrawn inside the case to unlock the lock. The device for actuating these lever-latches is a toothed piece, I, and it will be evident that if such piece be insert ed or lodged between the two geared arcs 9, so as to engage with both these arcs, then the movement ofsuch piecewill operate the latches. In Figs. 1 and 2 I have shown what I deem the best form for this toothed piece. It is a worm-shaft, which, being turned, will operate both the lever-latches equally and simultaneously, a handle, 9', located outside the case serving to turn the shaft, and, by means of the teeth of the worm, move the ends of the latches in or out of the case.

The keeper has two openings, h h, adapted to receive the latches.

In Figs. 4-, 5, and 6 the construction is, in all essentials, the same as above described, excepting that the toothed piece I, being arranged to slide forward and back, may be made fiat, its teeth, however, being, like those ofthe worm, always in engagement with the two toothed arcs g. This slide I move by means of its handle j and an eccentric, 1, working in an opening, 122, in the slide.

an are guides for the movement of the slide.

1 am aware that latches having toothed arcs have been used, the teeth of one are gearing directly with those of the other are, and having springs for throwing the latches into a locked position. Such an arrangement I neither have nor claim 5 but I claim 1. In a sash-lock, one or more pivoted lever-latches having an arc of cog-teeth actir ated by a movable piece gearing directly with such toothed are or arcs, such actuating-piece being provided with a handle outside the case, and serving to operate the latch or latches positively in latchin or unlatching, substantially as set forth.

2. In a sash-lock, the combination, with the latch box and with its inclosed geared and pivoted latches, of a sliding rack located between and engaging with the teeth of both latches, and an actuating-handle serving positively to latch and unlatch them, as set forth.

, EDWARD T. PRINDLE.

Witnesses:

PERoY arm, 0. L. HALSTED. 

